GB201506787D0 - Anamorphic objective zoom lens - Google Patents

Anamorphic objective zoom lens

Info

Publication number
GB201506787D0
GB201506787D0 GBGB1506787.9A GB201506787A GB201506787D0 GB 201506787 D0 GB201506787 D0 GB 201506787D0 GB 201506787 A GB201506787 A GB 201506787A GB 201506787 D0 GB201506787 D0 GB 201506787D0
Authority
GB
United Kingdom
Prior art keywords
zoom lens
anamorphic objective
objective zoom
anamorphic
lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
GBGB1506787.9A
Other versions
GB2528738B (en
GB2528738A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooke Optics Ltd
Original Assignee
Cooke Optics Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US14/683,297 external-priority patent/US9239449B2/en
Application filed by Cooke Optics Ltd filed Critical Cooke Optics Ltd
Publication of GB201506787D0 publication Critical patent/GB201506787D0/en
Publication of GB2528738A publication Critical patent/GB2528738A/en
Application granted granted Critical
Publication of GB2528738B publication Critical patent/GB2528738B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/08—Anamorphotic objectives
    • G02B13/12—Anamorphotic objectives with variable magnification
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
    • G02B15/145—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only
    • G02B15/1455—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)
GB1506787.9A 2015-04-10 2015-04-21 Anamorphic objective zoom lens Active GB2528738B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/683,297 US9239449B2 (en) 2013-04-04 2015-04-10 Anamorphic objective zoom lens

Publications (3)

Publication Number Publication Date
GB201506787D0 true GB201506787D0 (en) 2015-06-03
GB2528738A GB2528738A (en) 2016-02-03
GB2528738B GB2528738B (en) 2019-07-10

Family

ID=53298951

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1506787.9A Active GB2528738B (en) 2015-04-10 2015-04-21 Anamorphic objective zoom lens

Country Status (1)

Country Link
GB (1) GB2528738B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2543589B (en) * 2015-12-15 2018-02-21 Cooke Optics Ltd Anamorphic objective zoom lens
US10551598B2 (en) * 2016-01-06 2020-02-04 Panavision International, L.P. Anamorphic photography for digital imagers
CN114740607B (en) * 2022-06-10 2022-08-30 深圳市雷影光电科技有限公司 Wide screen anamorphic lens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4537108B2 (en) * 2004-04-12 2010-09-01 キヤノン株式会社 Anamorphic converter
US9239449B2 (en) * 2013-04-04 2016-01-19 Cooke Optics Ltd. Anamorphic objective zoom lens
GB2513993B (en) * 2013-04-04 2017-06-14 Cooke Optics Ltd Anamorphic objective lens

Also Published As

Publication number Publication date
GB2528738B (en) 2019-07-10
GB2528738A (en) 2016-02-03

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